In
Zap2it's exclusive clip from Monday's "Welcome Home" episode of the Kevin Williamson-penned serial killer drama, Mike Weston (
Shawn Ashmore) starts showing signs of paranoia... and for good reason! After all, just days ago he was shot by a police officer that he thought he could trust, and now that murderer Joe Carroll has escaped from prison, his influence over his followers is even stronger.

He's obviously learned that literally anyone around him could be one of Carroll's minions, and it probably doesn't help much that the FBI has brought in a new agent to run lead on the case -- Nick Donovan (Mike Colter) will be taking the reigns from here on out.

"It's a pride issue," Ashmore told us when we asked whether the agents would begin to beat themselves up for not bringing Joey home. "They start to question whether they're good at their jobs. It's a frustration. Also, ultimately, the brass starts to come down on us. They're saying, 'Guys, you're f***ing up.' The problem is getting bigger and bigger, and not only do we have to catch a guy, but we also have to wrap our heads around his motives and how far this reaches."